Repository Index

SMTP mock server written on Golang. Mimic any 📤 SMTP server behavior for your test environment with fake SMTP server.

• smtp
• smtp-mock
• smtp-server
• smtp-mail

High-performance, multi-protocol mock server. HTTP, WebSocket, gRPC, MQTT, SSE, GraphQL, SOAP in one binary.

• api-mocking
• cli
• developer-tools
• golang

Mockbin by Zuplo. Mock, Test, and View HTTP Requests and Responses

• api-client
• api-management
• api-mock
• api-test

DNS mock server written on 💎 Ruby. Mimic any DNS records for your test environment with fake DNS server.

• dns
• mock
• dns-mock
• mock-server

💎 Ruby SMTP mock. Mimic any 📤 SMTP server behavior for your test environment with fake SMTP server.

• testing
• testing-tools
• ruby
• ruby-gem

Simple and colorful test tools

• golang
• testing
• go
• test

Open-source simulation harness for testing AI agents. Simulate LLM and tool calls to test edge cases, failure paths, and agent logic without live API calls.

• ai-agents
• ai-testing
• llm
• llm-evaluation

The simplest way to test your APIs and webhooks

• dockerfile
• qa-automation
• testing-tools
• self-hosted

Open-source Modbus RTU/TCP slave simulator for the LRI AEM-60DC8 industrial DC monitor — 147 holding registers, 8 DC channels, 6 baudrates. SCADA/PLC integration testing without hardware.